This video shows the leftist unity between the Vanguardists, Cuba, and Electorialists, Jamaica.

Michael Manley was the Jamaican Prime Minister during the 1970's, and during his rule Jamaica began to radically transform itself through vast social and economic initiatives to reduce its dependency on Europe and the USA. Amongst some notable social policies introduced: opening a Bureau of Women's Affairs, provided equal pay for women who worked in the same jobs as men, established the family court so that fathers who had abandoned their families can be sued and forced to pay maintaince of the family, and lastly repealed the 'Bastard Act' which ensured that all children born out of wedlock received equitable inheritance.

One notable economic achievement was the introduction of minimum wage and necessity of pay for overtime work. (for more of his achievenments I recommend this short video: https://www.youtube.com/watch?v=vsWTehl-kMQ)

Unfortunately political violence overcame Jamaica with the 1980 Election seeing approximately 800 death and the replacement of Manley's socialist party with the right-wing Edward Seaga who increased Jamaica's reliance on the IMF and who is rumored to have been supported by the CIA.